R3_1 1/1 point (graded) y (cm) 2 - 10 1- -4 -3 -2 -1 1 -1 1x (cm) >We can write vector C as: none of these -4% + 2] O -3i + j Oi-3 O i - 3} O 23 - 4} V
R3_2 1/1 point (graded) N End 200 m ? B Start 45° 100 m What is the length of vector ?? 147 V 147
R3_3 4/4 points (graded) The position vector of a particle is F (+) = 3.0+3 2 + 4.0}. (a) What is the intantaneous velocity at t = 3.s? The x-component is: Enter your answer without units to two significant figures. 81 V 81 The y-component is: Enter your answer without units to two significant figures. 0 V 0 (b) Is the average velocity between 2 s and 4 s equal to the instantaneous velocity at t = 3 s? Find the answer by calculating the average velocity. The x-component of the average velocity is Enter your answer without units to two significant figures. 84 84 The y-component of the average velocity is: Enter your answer without units to two significant figures. 0 V 0 Submit Show answer